Muffler.



A. N. RUSSELL &: I. G. MASON.

MUFFLER.

APPLICATION FILED JUNE 8, 1912.

Patented Apr. 22, 1913.

INVENTORJ N Russel l Mason ATTORNEYS WITNESSES I5 I91 UNITED STATES PATENT OFFICE.

ANDREW N.

assrenons or ONE-THIRD NEW YORK.

RUSSELL AND ISAAC GODFREY MASON, 1

TO TICONDEROGA MACHINE WORKS, OF TICONDEROGA,

OF TICONDEBOGA, NEW YORK,

MUFFLER.

Specification of Letters Patent.

Patented Apr. 22, 1913.

Application filed June 8, 1912. Serial No. 702,534.

ternal combustion engines, with a plurality of disks, spaced apart, with central openings and corrugations extending therearound, so that when the gases of combustion are directed between the disks by the cone-shaped member disposed in the openings, the expansion of the cases is retarded and the direction of flow of the gases is reversed at each corrugation, by which means the explosive energy is absorbed. The gases which pass radially between the corrugated disks reach the outer circumference of the disks at a very much lower pressure than that at which they enter between the disks, and this is so, although, the sum of all the areas of the openings between the disks at their inner circumference is equal to the area of the exhaust pipe from the engine. As the passage for the gases from the engine is not restricted there is no objectionable back pressure with the use of our muffler, as is the case with mufflers of other types.-

Additional objects of the invention will appear in the following complete specification, in which the preferred form of the invent-ion is disclosed.

In the drawings similar characters of reference indicate corresponding parts in the views, in which- Figure l is a longitudinal sectional View of our muffler; Fig, 2 is a sectional View on the line 22 of Fig. 1, and Fig. 3 is a fragmentary sectional view showing the means for holding the disks apart.

By referring to the drawings it will be seen that a casing 5 is provided, having an end 6, and a removable end member 7. This removable end member 7 has an opening 8, with an outwardly-extending collar 9, therearound, this collar being threaded so thatthe thread on the pipe 11 leading from the engine will mesh therewith. Extending inward and around the opening 8 there is a rim 12, this rim 12 fitting an inner corrugation 13 onthe adjacent corrugated disk 14, there being additional corrugated disks l5 and 16, the corrugations in all these disks 14, 15 and 16 being disposed around the cen-' tral opening 17, in the disks, these central openings 17 being disposed substantially in alinemont with the opening in the removable end member 7 of the casing. The disks 14, 15 and 16 with the circular corrugations, are held spaced apart by the members 18, so that the gases of casing 5, through the openings 8, will pass combustion which enter the radially between the said corrugated disks.

In order to direct the gases radially through these corrugated disks, we provide a coneshapcd member 19, on a plate 20, this coneshaped member 19 extending in the opening 17 in the disks 15 and 16, the coneshaped i'nemher 19 engaging the adjacent corrugated disk 16 at its opening 17 The corrugated disks 14, 15 and 16, at their openings 17 are held together and in the direction of the openings 8 in the removable end member 7 by the rim 12 on the removable end member 7, and the cone-shaped member 19 on the plate 20. This plate 20, which is disposed in the casing 5, is provided with a circular rim 21, which is disposed in the outer circular corrugation on the corrugated disk 16. The plate 20, with its cone-shaped member 19, is held against the adjacent corrugated disk 16 by the bolts 22, which are disposed through orifices 23 in the plate 20, and also through the orifices 2a in the removable end member 7.

As will be seen by referring to Fig. 1 of the drawings the periphery of the plate 20 does not extend to the sides of the casing 5, thus leaving a passage around the periphery of the plate 20, to permit the gases which pass radially between the openings between the corrugated disks 14, 15 and 16, to pass 20, and to the pipe further retard the expansion of the gases which pass between the corrugated disks. The outer end of the pipe 25 is threaded at 32, for receiving the thread on a collar 33, this collar 33 having arms 3 1, and a collar 35, for receiving a valve stem 36, which is secured to the valve 37, which is pressed against the outer end of the pipe 25 by the spring 38 this spring 38 engaging the valve 37, at its inner end, and at its outer end the collar 35.

member 6, the expansion of the gases being again retarded by the rims and 31. When the gases reach the openings 20 they pass rearwardly through the pipe 25, the pressure on the valve 37 being sufficient to remove the valve 37 from its seat, to permit the gases to escape to the atmosphere. This Valve 30 is. preferably faced with a fiber or other heat-resisting material 37*, to prevent damage to the valve by excessive heat,

while the valve operates to convert the pulsations of thedischarge into more or less Having thus described our invention we claim as new, and desire to secure by Letters Patent:

1. In a muffler, a plurality of disks spaced apart and provided with central openings, the disks having corrugations extending around the central openings, the corrugas tions on one disk being substantially parallel with the corrugations on the other disks, and a cone-shaped member projecting into the openings for directing the gases of combustion between the disks.

2. In a muffler, a plurality of disks with central openings and corrugations extending around the openings, the disks and the cor-' rugations being disposed substantially parallel with each other, members for holding the disks spaced apart, and a cone-shaped member extending into the openings for digecltiing the gasesof combustion between the 3. In a muffler, a plurality of disks spaced apart and provided with central openings, the disks having annular corrugations extending around the central openings, and parallel with the corrugations on the adjacent disks, and a cone-shaped member'projecting intothe openings for directing the gases of combustion between the disks.

' 4. In a mufiler, two members spaced apart,

a plurality of disks disposed in the casing between the said members and having central openings, the disks having substantially parallel annular corrugations, rims extending inward from the members and fitting the corrugations for holding the disks in place, and means for holding the disks apart.

5. In a mufller, a casing having an end with an opening, a plate disposed in the easing and having a cone-shaped member extending in the direction of the opening, a plurality of disks disposed in the casing between the end of the casing and the plate, and having central openings disposed opposite the central openings in the end member, t disks having substantially parallel and annular corrugations, rims on the end of the casing and the plates, fitting the corrugations for holding the disks in place, and means for holding the disks apart.

6. In a muffler a casing having an end with an opening, a plate disposed in the casing and having a cone-shaped member extending in the direction of the opening, a

plurality of disks disposed in the casing between the end of the casing and the plate, and having central openings disposed opposite the opening in-the end member, the disks having substantially parallel corrugations, rims on the end of the casing and the plate fitting the corrugations, and means for holding the disks apart.

7. 'In a muflier a casing having an end with an opening and an inner rim at the opening, a plurality of disks disposed in the casing and having central openings and cor rugations therearound, one of they corrugations on an adjacent disk fitting the rim, a plate disposed in the casing engaging an adjacent disk and having a cone-shaped member extending in the opening in the adjacent disk, a rim on the plate spaced from the cone-shaped member and engaging a corrugation-on the last-mentioned disk, means for holding the disks spaced apart, and means for holding the plate in the direction of the said end of the casing.

8. In a mufller a casing having an end with an opening and an lnner rim at the openingya plurality of disks disposed in the casing having central openings and corrugations therearound, one of the corrugations on an adjacent disk fitting the rim, a plate disposed in the casing and spaced from the side and the other end of the casing, the plate engaging an adjacent disk and having a cone-shaped member disposed in the opening in the said adjacent disk, a rim on the plate spaced from the cone-shaped member, and engaging a corrugation on the last-mentioned /disk, means for holding the disks apart, a circular rim on the rear face of the plate, and an inner rim on the second-mentidned end of the casing spaced from the rim on'the rear face of the plate, there being an outlet opening in the second-mentioned end of the casing within the lastmentioned circular rim.

9. In a muffler a casing having an end with an opening and an inner rim at the opening, a plurality of disks disposed in the casing having central openings and corrugations therearound, one of the corrugations on an adjacent disk fitting the rim, a plate disposed in the casing and spaced from the side and the other end of the casing, the plate engaging an ad acent. disk and having a cone-shaped member disposed in the opening in the said adjacent disk, a rim on the plate spaced from the cone-shaped member and engagmg a corrugation on the last-mentioned disk, apart, a circular rim on the rear face of the plate, and an inner rim on th second-mentioned end of the casing, spaced from the rim on the rear face of the plate, there bein an outlet opening in the second-mentione end of the casing, within the last-mentioned circular rim, a valve member disposed opposite the outlet opening in the second-mentioned end of the casing, and resilient means for holding the valve member yieldingly in the direction of the outlet opening.

10. In a muffler a casing having an end with an opening and an inner rim at the opening, an outlet for the casing,-a plurality of disks disposed in the casing and having central openings and corrugations therearound, one of the corrugations on an adjacent disk fitting the rim, a plate disposed in the casing engaging an adjacent disk and having a cone-shaped member extending in the opening in the adjacent disk, a rim on the plate spaced from the cone-shaped member and engaging a corrugation on the last-mentioned dis means for holdin the disks spaced apart, and means for ho ding the plate in the direction of the said end of means for holding the disks,

11. A mufiler, a casing having an end with an opening and an inner rim at the opening, a plurality of disks disposed in the casing and having Eentral openings and corrugations therearound with the disks at their central openings extending in the direction of the opening in the end of the casing, one of the corrugations on an adjacent disk fitting the rim, and a plate disposed in the casing engaging an adjacent disk and having a cone-shaped member fitting the opening in the said adjacent disk.

12. A muffler, a casing having an end with an opening and an inner rim at the opening, a plurality of disks disposed in the casing and having central openings and corrugatlons therearound With the disks at their centralopenings extending in the direction of the openings in the end of the casing, one ofthe' corrugations on an adjacent disk fitting the rim, a plate disposed in the casing engaging an adjacent disk and having a cone-shaped member fitting in the openings in the said adjacent disk, and a rim on the plate spaced from the coneshaped member and engaging a corrugation on the last-mentioned disk, means for holding the disks apart, and means for holding the plate in the direction of the said end of the, casing.

In testimony whereof We have signed our names to this specification in the presence of two subscribing Witnesses.

ANDREW N. RUSSELL. ISAAC GODFREY MASON.

Witnesses:

RICHARD F. HAYES, ELMER J VINCENT. 

